Related Experiment Video
Updated: Aug 24, 2026

Finger-stick Blood Sampling Methodology for the Determination of Exercise-induced Lymphocyte Apoptosis
Published on: February 24, 2011
Dehydroepiandrosterone (DHEA) and its sulfate (DHEAS) inhibit the apoptosis in human peripheral blood lymphocytes
Hirokazu Takahashi1, Atsushi Nakajima, Hisahiko Sekihara
1The Third Department of Internal Medicine, School of Medicine, Yokohama City University, 3-9 Fuku-ura, Kanazawa, Yokohama, Japan. hirokazu@med.yokohama-cu.ac.jp
Background:
Dehydroepiandrosterone (DHEA) and DHEA-sulfate (DHEAS) are the major steroid hormones secreted by the adrenal gland. Administration of DHEA has been reported to have beneficial effects on aging, diabetes, and atherosclerosis. Apoptosis is a normal physiologic process that occurs during embryonic development as well as in the maintenance of tissue homeostasis. In this study, we examined the suppressive effect of DHEA(S) on staurosporine-induced apoptosis in human peripheral blood lymphocytes (PBL).
Methods:
Apoptosis was induced in human PBL with staurosporine and measured by flow cytometry utilizing Annexin V and propidium iodide (PI) staining. The quantity of FITC+/PI- cells corresponded to early apoptosis, while that of FITC+/PI+ cells corresponded to late apoptosis or secondary necrosis.
Results:
The fraction of staurosporine-induced early apoptosis but not that of secondary necrosis in PBL was reduced by the treatment with either DHEA or DHEAS. Furthermore, this apoptosis was neither associated with androgen receptor (AR) nor with estrogen receptor (ER).
Conclusions:
This is the first study showing that DHEA(S) inhibits apoptosis in human PBL through a mechanism independent of either ARs or ERs. DHEA(S) may be a promising chemopreventive drug for aging, diabetes, and atherosclerosis.
Related Concept Videos
Apoptosis
Regulation of Hematopoietic Stem Cells
The Extrinsic Apoptotic Pathway
The Intrinsic Apoptotic Pathway
Caspases
Cellular Injury V: Apoptosis and Autophagy
